Steam-boiler.



H. S. STUDDERT.

STEAM BOILER. APPLICATION FILED SEPT-29. 1914. 1,172,401. Patented Feb.22,1916.

2 SHEETSSHEET I.

WIINESSES: //v 1/5/11 10/? im/em W g 1 5 ert 5PM ATTORNEY THE COLUMBIAPLANOURAPH .60., WSHINGTON,D. C.

H. S. STUDDERT.

STEAM BOILER.

APPLICATION FILED SEPT. 29, 1914. 1,172,401. Patented Feb. 22,1916.

2 SHEETS-SHEET 2.

WITNESSES: I/VVE/V TOR THE COLUMBIA PLANOGRAPH co..- WASHINGTON, D. c.

HUGH s. srnnnnnr, or sn rr rnn, wasnnveron STEAM-BOILER.

7 Specification of L'etters'latent. Pat t 22, 19 1 Application filedSeptember 29,1914. Serial No. seiloss.

T 0 all whom it may concern v 7 Be it known that 1, HUGE S. S rUD ERT, acitizen of the United States, residing at Seattle, in the county of Kingand State of Washington, haveinvented certain new and usefulImprovements in Steam-Boilers, of

Iwhich the following is a specification.

My invention relates to steam boilers, and

comprises the novel parts and, combinations of parts which will behereinafter part1cu- I larly defined by the claim.

Theobject of my inventioihis to provide a stronger and more efficientsteam genera tor, especially for mar ne bo1lers,-one which will betterstand the racking motion. ofa vessel, and one which can easily becleaned and inspected.

Other objects will appear from a study of the specification and claim.

In the accompanying drawings, I have shown my invention in the formwhich is now. preferred by me.

Figure 1 is a side elevation of my boiler, part of the casing beingremoved and part being shown in section. Fig. 2 is an end elevation andpartial section of my boiler.

clean, and yet strong enough to stand the racking and quivering of thevessel. They must also be eflicient and economical in operation. Myboiler is designed to include all of these desirable features.

I provide a steam drum 1 which is of sufficient length to projectthrough the ends of the casing 7. This drum 1 is provided at drums lpositioned at each side of the boiler, and to which they are coupled byT- flttings' 22. This forms an inverted U- shape connection between the,steam drum 1 and respective mud-drums 4. The pipes 3, however, extenddirectly downward at each side from the drum 1, and are connected tomud-drums 4: by T-fittings 32. This forms an inverted V-shapedconnection, and the pipes 2 and 3 to supportjthe drum 1, andholditfirmly in, place against vertical and lateral strains, 1

The steam generator proper consists of a series of. coils 5 connectedwith the muddrumst by. risers These coils are each constituted of aplurality of pipes Which ared1sposed'in inclined positions, as shown,

to facilitate the circulation of the water ashort distance of the centerof theboiler;

Instead of each individual coil vbeing di-- rectly, connected with the.steam drum, a group of coils preferably two, are joined at 51 by anysuitable connection, and thence a singlepipe 52 connectseachpair ofcoils with the drum and at adistance above the water level therein. Adoubling plate 13, so called, is advantageously provided to reinforcethe drum where it istoppedtoreceive the pipe connection 52 to compensatefor the borings in the drum shell and afford greater lengths of threadsto. engage said connection. In marine boilers, it is desirable that theyshould occupy very little space, be easy. to;

To better distribute the -furnace heat 6 and 61 arranged in a peculiarmanner. Two plates 6, one on each side of the boiler, extendhorizontally just above the generating coils, from end to end of theboiler.

These bafiie-plates 6 are of widths to pro-v vide passages for the hotcombustion gases between their .inner sides and the steamdrum 1. Abaffle-plate 61 is placed on a plane below the plane, of plates 6, andex tendsfrQm the rear end of the casing tov within ashortv distance fromthe front end thereof. This plate 61, however, does not touch the sidesof the casing, but extends outwardly fromthe center on both sides butpart-way to the sides of the casing. More particularly, the baffles 6and 61 contribute to direct the currents of heated gases, causing themto flow forwardly and laterally from, and then against, the drum beforeestherein and promote the flow 0f-the gen- 'erated steam to the drum 1,and are" ar'-' ranged in the fire-box to extend-to within among-the pipecoils, I provide baflie-plates caping by stack outlet 75. By suchdevice, a more effective heating of the coils and" steam drum isattained than would otherwise obtain.

The casing 7 is provided with openings 71 at front and rear for theprojection of the steam drum 1. This casing is also provided with theusual openings, as the furnace doors 72, ash doors 73 and cleaning outopenings 74. v

I have left a space 7 6 between the cells 5, the casing 7 and thesteam-drum 1. This will allow a man to enter through one of the doors 74to inspect or repair theboiler.

12. This battle-plate extends downwardly in front of thedischargeopemngs and is arranged sothat the.water andsteam dischargedfrom the generating coils 5 will lIIl-' pinge upon 1t, and be deflecteddownward,

as the pipes 52 are placed above the water level in the drum. The fluidthus 11np1nging the plates will ina measure, effect the separation ofthe steam from the vaccoinpanying water, the water discharged from thecoils fallin into the bod T ofwater H1 the drum while the SiLQHHI'Willmingle with that'in the drum. tobe led-0t? through pipe:

14, and accordingly obviate the discharge of saturated steamfrom theboiler.

if it is desired to remove one of the coils 5 for any reason, anoperator may enter at 7% into space 7 6 to d1sconnect a c011 at 55 or54, and, by entering the door 72 into the boiler furnace, the respectivepipe may be unscrewed for the removal of the coil. viher'e convenient,the side of the casing 7 may be detached and the coils taken out Veryeasily; otherwise a coil may have to be sep arated into parts which willpass through one of the casing doors. In this way the Gopies of thispatent-may be obtained for five cents each, by addressing theCommissioner ofjPatents,

coils may be quickly andeasilyremoved for 1 repairs when necessary. 7

Having described my invention, What-I In'la steam generator, in:combination, a a

casing, a horizontal steam drum "extending;

outside the casing at each end, horizontals;

inuc l-druins-at each side of the generatorand projecting from thecasingat each end, down-flow pipes ateach end of, andren;

tirely outside of, the generator connecting said steam-drum and i saidmud-drums; a

series of generating, coils connected inpairs immediately outside thesteam' drum and connecting said mud-drums and said steam;

drum; said generating coils having one opening into the steamwdrum foreachipair of coils, .saidopenin'gs being placed abovethe water level insaid steamJdrum a baiileplate in said steam drum immediately above thesaid openings and inclined. downwardly, a battle-plate at each side oithe generator extending fromendtoendof tlie'series of generating coils,and extending inward less than half the Width of the generator, and abattle-plate placed below said; first bafiieplates, and extending fromthe rear for-' wardly less than the length. ofthe generator and to theside less than the width ofthe generator.

Signed at seattle Wash, this 1st "day of September; 1914.

V HUGH S. STUDDEIRT;

lVitnesses:

PIERRE BARNES, E. PETERSON.

Washington, D. 0

